What is Moisturizing Shampoo?

Brendan McGuigan

Moisturizing shampoo is shampoo that tries to keep the pH of the hair at about its natural level, around 5.0 or so. When the pH of the hair gets too high, the hair becomes too alkaline, and the cuticles open, the hair becomes dry and brittle, and the shine disappears. Is the pH of the hair gets too low, on the other hand, it will become hard and rough. So a big part of moisturizing shampoo is aiming to keep the hair in that sweet spot between the cuticles opening too much, and the hair becoming too hard.

Ylang ylang, which is often included in moisturizing shampoo.
Ylang ylang, which is often included in moisturizing shampoo.

Of course, a moisturizing shampoo isn’t your only line of defense against dry and brittle hair. A good conditioner will help heal any damage you may have caused with a rough shampoo, and help to replenish some of the oils that you’ve stripped away with your shampoo. On the other hand, conditioner can only go so far, so the less damage you can cause, preferably by using a good moisturizing shampoo, the healthier and more vibrant your hair will be in the long run.

Using a moisturizing shampoo and conditioner can help smooth the hair.
Using a moisturizing shampoo and conditioner can help smooth the hair.

These days, most brands advertise as being moisturizing, so you’ll want to look at the ingredients to get a better feel for whether they will actually help your hair. First and foremost, you want to look at how many sulfates the shampoo includes. Sulfates help shampoo do its primary job, removing dirt and gunk from your hair, but they can also remove too many of the natural oils from your hair, making it overly dry. A good moisturizing shampoo has a single sulfate in it, but anything more than that and it is designed to strenuously cleanse hair, not to moisturize it. There are a wide range of sulfates used in shampoos, but some of the most common are sodium laureth sulfate, sodium lauryl sulfate, ammonium lauryl sulfate, and ammonium laureth sulfate.

Moisturizing shampoo is good for dry, brittle hair.
Moisturizing shampoo is good for dry, brittle hair.

Both ammonium lauryl sulfate and ammonium laureth sulfate are particularly harsh on hair, designed to clean especially dirty hair, not to moisturize. Similarly, if faced with a choice in your moisturizing shampoo, the laureth sulfates are gentler than the lauryl sulfates, and sulfates like tricedeth or sodium myreth are even gentler still. Shampoo that contains sodium myreth, in particular, will tend to be much more focused on moisturizing your hair.

Moisturizing shampoo in a pump bottle may be easier for kids to use.
Moisturizing shampoo in a pump bottle may be easier for kids to use.

Of course, shampoo isn’t much good if it isn’t cleaning your hair. So it’s important that there be something the shampoo doing its job. Once you cut out sulfates, either most or all of them, you’re left with a few options for gentler cleansers that indicate you’re using a truly specially-formulated moisturizing shampoo. Lauryl polyglucose, isethionate, and cocamidopropyl betaine are some of the most common of this gentler class of cleaners, or surfactants.

One last thing to look out for are the relative amounts of ingredients in your shampoo. Many manufacturers have become savvy to the fact that their consumers now know ingredient lists cover ingredients from most to least, by law. So what they will do is include all of the herbal and plant-based ingredients at the top of the list in a long grouping, ending it with “in water” or “in purified water”, which makes the quantity much larger because it is in water, when in fact there is likely very little of these ingredients present. Take care to look further down the list to look out for sulfates anyway, and don’t be fooled by the presence of jojoba or ylang ylang into thinking you are buying a gentle moisturizing shampoo.

Using moisturizing shampoo may help reduce the appearance of dandruff in some people.
Using moisturizing shampoo may help reduce the appearance of dandruff in some people.

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Discussion Comments


Using a moisturising shampoo on its own is far better than using a 2-in-1 combined shampoo and conditioner. A good moisturising shampoo should cleanse the hair gently and also add conditioning and smoothing ingredients, without weighing hair down too much or causing a build-up of dimethicones on the hair which can cause problems over time and weaken the hair. Your hair will be left smooth and shiny and de-tangled.

You can select a moisturising shampoo that suits you hair by picking a quality mass-market brand of shampoo (not a store's own brand) which is formulated for dry/damaged hair, as this will have the highest level of conditioning ingredients and the lowest levels of detergents, giving you a mild cleanse and strong conditioning and leaving you with far better results than a 2-in-1 shampoo and conditioner formula.


@firstviolin -- I've always liked Nexxus scalp moisturizing shampoo. My hairdresser uses it, and I finally caved and bought some myself. I haven't used anything else since!


When it comes to choosing the best daily moisturizing shampoo, I've always come back to two old standbys.

My first, and long-time favorite, is Johnson and Johnson's baby shampoo. It really is super-gentle, and although it's not marketed as a moisturizing shampoo, it works really well to clean your hair without stripping it.

My other standby is Pantene moisturizing shampoo. This has always worked really well for me, but I find that it tends to build up after a while, and I have to switch to something else before coming back to it.

So how about it wisegeekers, what, in your opinion, is the best moisturizing shampoo?


Wow -- I had no idea there was so much science behind choosing a moisturizing shampoo and conditioner. Now this makes me want to go back and check all the labels on my presumably "natural organic" moisturizing shampoo -- I really hope they meet the standards!

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